What does the fabric data plane leverage in SD-Access Architecture?

Refer to the exhibit. The full EIGRP routing table is advertised throughout the network. Currently, users experience data loss when any one link in the network fails. An architect optimizes the network to reduce the impact when a link fails.
Which solution should the architect include in the design?

Drag and Drop Question
Drag and drop the elements from the left onto the protocols where they are used on the right.

An architect must design an IPv6 migration solution for a corporation with remote offices to support:
- The customer has IPv4 peering with their service provider.
- IPv6 users need access to IPv4 and IPv6 resources.
- Existing content providers will migrate to IPv6 in the next two
years.
- Users will be migrated in a phase-by-phase approach.
Which migration solution must the architect choose?

An engineer must design a multicast network for a financial application.
Most of the multicast sources also receive multicast traffic (many-to-many deployment model).
To better scale routing tables, the design must not use source trees.
Which multicast protocol satisfies these requirements?